Method of and apparatus for regulating the cutting places of severing mechanism with cigarette-rod machines



ES OF SEVERING s Aug. 11, 1925.

B. R. SCHIEFER METHOD OF AND APPARATUS FOR REGULATING THE CUTTING PLAC MECHA OD MACHINE NISM WITH CIGARETTE R Filed May 11, 192

Patented Aug. 11, 1925.

UNITED STATES PATENT DFFIC.

BRUNO RICHARD SCHIEFER, OF DRESDEN, GERMANY, ASSIGNOR TO UNIVERSELL E Y CIGARETTENMASCHINEN-FABRIK, J. C. Mil'LLER & 00., OF DRESDEN, GERMANY.

METHOD OF AND APPARATUS FOR REGULATING THE CUTTING PLACES 0F SEVERING MECHANISM WITH CIGARETTE- ROD MACHINES.

Application filed May 11, 1925. Serial No. 29,471.

T 0 all whom it may-concem:

Be it known that I, BRUNO RICHARD SCHIEFER, a citizen of Germany, residing at Dresden, Saxony, Germany, have invented certain new and useful Improvements in Methods of and Apparatus for Regulating the Cutting Places of Severing Mechanism with Cigarette-Rod Machines, of which the following is a specification.

With cigarette rod machines, the severing mechanism is adapted to cut up the cigarette rod fed with uniform-speed at regular intervals into pieces of the length of cigarettes. If the well-known irregularities occur, such as the displacement of the rod, due to applying impressions or coverings for monthpieces, so that the places at which the cuts are to be made also become displaced, then, as a rule, the cutting operation has to be readjusted. Such readjustment requires the employment in the severing device of sensitive and more or less complicated adjustment means, which, after some wear, become unreliable and as a matter of fact do not answer the requirements in view of the always increasing speed of the feeding movement of the cigarette rod.

According to this invention, the problem is attacked from a different angle. Its pur pose is to provide such means as will not affect the cutting operation of the severing device, that is, not require the employment of any adjustment means in the severing device, and which will not affect the cigarette rod itself or the cigarette paper band,

i. e. not require adjustment means in the feeding mechanism of the rod or band. These means, according to the present invention, consist of an adjustment of the means used for imparting motion to the apparatus for applying impressions or mouthpieces to the cigarette paper band. The

latter, which is continuously fed, receives the impressions or mouthpieces at regular intervals. This adjustment normally permits the severing device to continuously carry out its cutting operation at regular intervals and the cigarette rod to be fed with uniform speed, so that the'cigarettes are cut to precisely the size previously fixed. When, however, irregularities occur, so that the cut will not be made at the proper place on the cigarette rod, then, while leaving everything else intact, only the place where the impressions or mouthpieces are to be applied to the rod is changed, i. e. this place is brought into proper relation to the cut to be made by the severing device. Such adjustment device, according to my invention, may consist of a differential gear, which can be inserted in the mechanism employed for the transmission of motion to the impression or mouthpiece applying apparatus, whereby the motion of the impression or mouthpiece applying apparatus can be temporarily either accelerated or retarded, as

a result of which the place of the impression or covering for the mouthpiece on the continuously and uniformly fed cigarette paper band will be correspondingly changed. Vhen the differential gear is arrested, the apparatus will continue to work with its normal rhythm.

My invention will be more fully understood by reference to the accompanying drawing in which similar reference characters denote corresponding parts and in which Fig. 1 shows diagrammatically the cooperation of the severing device and of the differential gear, and Fig. 2 is a longitudinal section of the differential gear and of the gear for transmitting motion to the impression ormouthpiece applying apparatus.

In the drawing, a denotes a gear, which constitutes a part of the motion transmitting means employed for the transmission of motion to the means(not shown) for applying impressions or mouthpieces to the cigarette rod. This gear is driven by means of the gear 6 on a shaft 0 rotatively borne in bearings 0, c Rotatively mounted on the shaft 0, is a gear d. which, by means of a suitable clutch coupling e, is coupled to the shaft 0. The gear (1 meshes with a gear f, which is one of a pair of planetary whee s f, g rigidly connected together and of which the second planetary wheel 9 meshes with a gear h mounted on the shaft 2', that carries the aforenamed gear a. The shaft 71 is rotatively mounted in a hearing 5' and loosely mounted on said shaft is a gear k to which is fixed by means of a screw bolt Z. The gear la is adapted to mesh with a pinion n, which can be operated manually through a handwheel 0.

The operation is as follows:

During the normal operation of the machine, the gear k is at rest, so that the gear a the pinion n, as a result of which the plane tary gears f and y will roll on the corresponding gears (Z and h, thereby, according to the rotation, accelerating or retarding the gear a. In this manner, the places at which the cigarette paper band is to receive the impressions or coverings for the mouthpieces will be displaced either forwardly or backwardly relative to their normal places. As soon as the proper position is reestablished, the differential gear is arrested and the normal operation resumed, that is, rotation is imparted to the gear a directly from the gear 6 in the aforenamed manner.

The cooperation of the printing or stamping apparatus and the covering apparatus will be clear from Fig. 1. The driving gear a is mounted on the shaft '5 in alignment with the shaft 0. This gear a drives the gear I) mounted on shaft 0 in the manner already described and meshing with the gear p, which, in turn, meshes with gear q. On the shaft of the latter is mounted the wellknown stamping wheel 1" toward which the cigarette stripto be stamped is conveyed from the spool B over the guide rollers W, W and W This strip is further guided over rollers W, W and W past the glue applying member s on the shaft of which is mounted the gear t driven by means of an intermediate gear at from the wheel 9. The strip Z is then conveyed between the rollers W and W where it meets the strip M serving as mouthpiece covering, delivered from the spool B and guided over the roller W". The strip M after meeting with the cigarette strip Z is cut off by the severing device V and is then to be glued to the strip Z. The glue applying means 8 is operated from the wheel w driving the Wheel :0 mounted on the shaft of the roller V The wheel w is driven from the wheel t. As will be seen, the driving means for the stamp 1' and the glue applying member s and roller W are operatively connected together, so that on turning the hand wheel 0 all these parts are simultaneously adjusted.

The cigarette strip Z, after the mouthpiece strip M has been applied to it, is formed to a tube in the former F and is then, in well-known manner, severed by the circular knife K into uniform cigarette tube sections.

What I claim is z- 1. A method of adjusting with cigarette rod machines the cutting places on the cigarette rod consisting in that without affecting the periodical succession of the cutting operations of the severing mechanism and the speed of the feed of the cigarette rod, the

* periods of application of impressions or coverings for mouthpieces on the cigarette paper band are either accelerated or retarded, until the same reach the proper positions.

2. In a cigarette rode machine, the combination with means for transmitting motion to the cigarette severing mechanism and means for transmitting motion to the apparatus for applying impressions or covering for mouthpieces, of a device for regulating the cutting places on the cigarette rod, comprising a manually operable differential mechanism interposed between said two transmission means, whereby, without affecting the cutting periods of the severing mechanism and the feeding speed of the cigarette rod, the operation of the means for operating the impression or covering applying apparatus can be accelerated or retarded until the proper cutting places are reestablished.

In testimony whereof I afiix my signature in presence of two witnesses.

BRUNO RICHARD SCHIEFER.

Witnesses: v

Gnome KURT HOLFERS, ELIZABETH HOUSE. 

